lib/python/Components/ServiceScan.py

   1 from enigma import eComponentScan, iDVBFrontend
   2 from Components.NimManager import nimmanager as nimmgr
   3
   4 class ServiceScan:
   5
   6         Idle = 1
   7         Running = 2
   8         Done = 3
   9         Error = 4
  10
  11         Errors = {
  12                 0: "error starting scanning",
  13                 1: "error while scanning",
  14                 2: "no resource manager",
  15                 3: "no channel list"
  16                 }
  17
  18         def scanStatusChanged(self):
  19                 if self.state == self.Running:
  20                         self.progressbar.setValue(self.scan.getProgress())
  21                         self.lcd_summary.updateProgress(self.scan.getProgress())
  22                         if self.scan.isDone():
  23                                 errcode = self.scan.getError()
  24
  25                                 if errcode == 0:
  26                                         self.state = self.Done
  27                                 else:
  28                                         self.state = self.Error
  29                                         self.errorcode = errcode
  30                                 self.network.setText("")
  31                                 self.transponder.setText("")
  32                         else:
  33                                 self.text.setText(_("scan in progress - %d%% done!") % self.scan.getProgress() + ' ' + _("%d services found!") % (self.foundServices + self.scan.getNumServices()))
  34                                 transponder = self.scan.getCurrentTransponder()
  35                                 network = ""
  36                                 tp_text = ""
  37                                 if transponder:
  38                                         tp_type = transponder.getSystem()
  39                                         if not tp_type[0]:
  40                                                 tp_type = tp_type[1]
  41                                                 if tp_type == iDVBFrontend.feSatellite:
  42                                                         network = _("Satellite")
  43                                                         tp = transponder.getDVBS()
  44                                                         if not tp[0]:
  45                                                                 tp = tp[1]
  46                                                                 orb_pos = tp.orbital_position
  47                                                                 try:
  48                                                                         sat_name = str(nimmgr.getSatDescription(orb_pos))
  49                                                                 except KeyError:
  50                                                                         sat_name = ""
  51                                                                 if orb_pos > 1800: # west
  52                                                                         orb_pos = 3600 - orb_pos
  53                                                                         h = _("W")
  54                                                                 else:
  55                                                                         h = _("E")
  56                                                                 if sat_name.find("%d.%d" % (orb_pos/10, orb_pos%10)) != -1:
  57                                                                         network = sat_name
  58                                                                 else:
  59                                                                         network = ("%s %d.%d %s") % (sat_name, orb_pos / 10, orb_pos % 10, h)
  60                                                                 tp_text = ("%s %s %d%c / %d / %s") %( { 0 : "DVB-S", 1 : "DVB-S2" }[tp.system],
  61                                                                         { 0 : "Auto", 1 : "QPSK", 2 : "M8PSK", 3 : "QAM16" }[tp.modulation],
  62                                                                         tp.frequency/1000,
  63                                                                         { 0 : 'H', 1 : 'V', 2 : 'L', 3 : 'R' }[tp.polarisation],
  64                                                                         tp.symbol_rate/1000,
  65                                                                         { 0 : "AUTO", 1 : "1/2", 2 : "2/3", 3 : "3/4", 4 : "5/6",
  66                                                                          5 : "7/8", 6 : "8/9", 7 : "3/5", 8 : "4/5", 9 : "9/10",
  67                                                                          15 : "NONE" }[tp.fec] )
  68                                                 elif tp_type == iDVBFrontend.feCable:
  69                                                         network = _("Cable")
  70                                                         tp = transponder.getDVBC()
  71                                                         if not tp[0]:
  72                                                                 tp = tp[1]
  73                                                                 tp_text = ("DVB-C %s %d / %d / %s") %( { 0 : "AUTO", 1 : "QAM16", 2 : "QAM32", 3 : "QAM64", 4 : "QAM128", 5 : "QAM256" }[tp.modulation],
  74                                                                         tp.frequency,
  75                                                                         tp.symbol_rate/1000,
  76                                                                         { 0 : "AUTO", 1 : "1/2", 2 : "2/3", 3 : "3/4", 4 : "5/6", 5 : "7/8", 6 : "8/9", 15 : "NONE" }[tp.fec_inner] )
  77                                                 elif tp_type == iDVBFrontend.feTerrestrial:
  78                                                         network = _("Terrestrial")
  79                                                         tp = transponder.getDVBT()
  80                                                         if not tp[0]:
  81                                                                 tp = tp[1]
  82                                                                 tp_text = ("DVB-T %s %d %s") %( { 0 : "QPSK", 1 : "QAM16", 2 : "QAM64", 3 : "AUTO"}[tp.modulation],
  83                                                                         tp.frequency,
  84                                                                         { 0 : "Bw 8MHz", 1 : "Bw 7MHz", 2 : "Bw 6MHz", 3 : "Bw Auto" }[tp.bandwidth])
  85                                                 else:
  86                                                         print "unknown transponder type in scanStatusChanged"
  87                                 self.network.setText(network)
  88                                 self.transponder.setText(tp_text)
  89
  90                 if self.state == self.Done:
  91                         if self.scan.getNumServices() == 0:
  92                                 self.text.setText(_("scan done!") + ' ' + _("%d services found!") % 0 )
  93                         else:
  94                                 self.text.setText(_("scan done!") + ' ' + _("%d services found!") % (self.foundServices + self.scan.getNumServices()))
  95
  96                 if self.state == self.Error:
  97                         self.text.setText(_("ERROR - failed to scan (%s)!") % (self.Errors[self.errorcode]) )
  98
  99                 if self.state == self.Done or self.state == self.Error:
 100                         if self.run != len(self.scanList) - 1:
 101                                 self.foundServices += self.scan.getNumServices()
 102                                 self.execEnd()
 103                                 self.run += 1
 104                                 self.execBegin()
 105
 106         def __init__(self, progressbar, text, servicelist, passNumber, scanList, network, transponder, frontendInfo, lcd_summary):
 107                 self.foundServices = 0
 108                 self.progressbar = progressbar
 109                 self.text = text
 110                 self.servicelist = servicelist
 111                 self.passNumber = passNumber
 112                 self.scanList = scanList
 113                 self.frontendInfo = frontendInfo
 114                 self.transponder = transponder
 115                 self.network = network
 116                 self.run = 0
 117                 self.lcd_summary = lcd_summary
 118
 119         def doRun(self):
 120                 self.scan = eComponentScan()
 121                 self.frontendInfo.frontend_source = lambda : self.scan.getFrontend()
 122                 self.feid = self.scanList[self.run]["feid"]
 123                 self.flags = self.scanList[self.run]["flags"]
 124                 self.state = self.Idle
 125                 self.scanStatusChanged()
 126
 127                 for x in self.scanList[self.run]["transponders"]:
 128                         self.scan.addInitial(x)
 129
 130         def updatePass(self):
 131                 size = len(self.scanList)
 132                 if size > 1:
 133                         self.passNumber.setText(_("pass") + " " + str(self.run + 1) + "/" + str(size) + " (" + _("Tuner") + " " + str(self.scanList[self.run]["feid"]) + ")")
 134
 135         def execBegin(self):
 136                 self.doRun()
 137                 self.updatePass()
 138                 self.scan.statusChanged.get().append(self.scanStatusChanged)
 139                 self.scan.newService.get().append(self.newService)
 140                 self.servicelist.clear()
 141                 self.state = self.Running
 142                 err = self.scan.start(self.feid, self.flags)
 143                 self.frontendInfo.updateFrontendData()
 144                 if err:
 145                         self.state = self.Error
 146                         self.errorcode = 0
 147                 self.scanStatusChanged()
 148
 149         def execEnd(self):
 150                 self.scan.statusChanged.get().remove(self.scanStatusChanged)
 151                 self.scan.newService.get().remove(self.newService)
 152                 if not self.isDone():
 153                         print "*** warning *** scan was not finished!"
 154
 155                 del self.scan
 156
 157         def isDone(self):
 158                 return self.state == self.Done or self.state == self.Error
 159
 160         def newService(self):
 161                 newServiceName = self.scan.getLastServiceName()
 162                 self.servicelist.addItem(newServiceName)
 163                 self.lcd_summary.updateService(self.scan.getLastServiceName())
 164
 165         def destroy(self):
 166                 pass